Hi Android geeks.
I am having a practice writing a little audio player. The app connect
to http server to download mp3 files(not audio streaming). After
downloading, it player the file using mediaplayer. But I tried to
play it, error like title happens. Below is some pieces of my code:
public class ViewArticleActivity extends Activity {
MediaPlayer mediaPlayer;
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView (R.layout.activity_view_article);
mediaPlayer = new MediaPlayer();
}
protected void downloadAudio(String url){
HttpDownload download = new HttpDownload(this, new
HttpDownloadListener(){
ProgressDialog mProgress;
public void onStart() {
Resources res = getResources();
mProgress =
ProgressDialog.show(ViewArticleActivity.this,
res.getString(R.string.download),
res.getString(R.string.wait_download));
}
public void onDone(String filePath) {
mProgress.dismiss();
if (filePath==null){
Log.e(TAG, "File is null");
return;
}
File f = new File(filePath);
if (!f.exists()){
Log.e(TAG, "File not found:" +
filePath);
return;
}
try {
//DB Access code will be here
mediaPlayer.setDataSource(filePath);
mediaPlayer.prepare(); //==> Error here
} catch (Exception e) {
Toast.makeText(ViewArticleActivity.this, e.getMessage(),
Toast.LENGTH_LONG).show();
}
}
});
download.download(url, "mypackage");
}
}
I can see the audio file in the file explorer, which is normal audio
file. But when I try to play the file, the error occurs. In the API
documentation, setDataSource(String path) accepts file path of a file
as parameter. I don't know what the problem is. Please help me...
Thanks in advance.
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